ARTICLE AD BOX
in my Android Studio project I'm having no end in trouble getting all my plugins to work correctly with Gradle 9.2.1-bin. I keep getting this error "Unable to load class 'com.android.build.gradle.api.BaseVariant' com.android.build.gradle.api.BaseVariant" despite all of Gemini's suggestions.
Here is a list of all my setting in my TOML file:
AGP: 9.1.0-alpha05 KSP: 2.3.4 (with ksp.useKSP2=true in gradle properties) Kotlin: I've removed because from my understanding is that using Gradle 9.0+, Kotlin support is built in Hilt: 2.59 Gradle Secrets: I removed and stored my keys in local.properties because I understand that from AGP 8.0+ it has been deprecated.I've deleted .gradle and build folders, and did a Invalidate Caches reset, and still have problems. I've tried downgrading Gradle to 8.13.2,but still got the dreaded "Unable to load ..." error. Where do I look to find out what plugin versions are compatible with my chosen AGP?
libs.versions.toml [versions] activityCompose = "1.12.2" androidx_core_ktx = "1.17.0" hilt_android_gradle_version = "2.59" androidx_appcompat = "1.7.1" constraintlayout = "2.2.1" hiltCompiler = "2.59" javax_annotation = "1.3.2" androidx_privacysandbox_tools = "1.0.0-alpha14" firebase_storage_ktx = "21.0.2" play_services_identity = "18.1.0" junit = "4.13.2" androidx_test_ext_junit = "1.3.0" androidx_fragment_ktx = "1.8.9" androidx_hilt_compiler = "1.3.0" androidx_activity_ktx = "1.12.2" androidx_lifecycle = "2.10.0" glide_compose = "1.0.0-beta08" retrofit = "3.0.0" okhttp3 = "5.3.2" kotlinx_coroutines = "1.10.2" firebase_bom = "34.8.0" play_services_places = "5.1.1" maps_compose = "7.0.0" stripe_android = "22.6.0" stripe_java = "31.2.0" volley = "1.2.1" androidx_multidex = "2.0.1" androidx_compose_material3 = "1.4.0" android_gradle_plugin_version = "9.1.0-alpha05" androidx_activity = "1.12.2" google_services_gms = "4.4.4" dagger_hilt_android = "2.59" kotlin_compose = "2.3.0" androidx_savedstate = "1.4.0" compose_version = "1.10.1" ksp_version = "2.3.4" [libraries] androidx-activity-compose = { module = "androidx.activity:activity-compose", version.ref = "activityCompose" } androidx-core = { group = "androidx.core", name = "core-ktx", version.ref = "androidx_core_ktx" } androidx-lifecycle-viewmodel-compose = { module = "androidx.lifecycle:lifecycle-viewmodel-compose", version.ref = "androidx_lifecycle" } androidx-material3 = { module = "androidx.compose.material3:material3" } androidx-ui = { module = "androidx.compose.ui:ui" } androidx-ui-test-junit4 = { module = "androidx.compose.ui:ui-test-junit4" } androidx-ui-test-manifest = { module = "androidx.compose.ui:ui- test-manifest" } androidx-ui-tooling = { module = "androidx.compose.ui:ui-tooling" } androidx-ui-tooling-preview = { module = "androidx.compose.ui:ui-tooling-preview" } firebase-auth = { module = "com.google.firebase:firebase-auth" } firebase-firestore = { module = "com.google.firebase:firebase-firestore" } hilt_compiler = { group = "com.google.dagger", name = "hilt-compiler", version.ref = "hiltCompiler" } hilt_android = { group = "com.google.dagger", name = "hilt-android", version.ref = "hilt_android_gradle_version" } androidx_appcompat = {group = "androidx.appcompat", name = "appcompat", version.ref = "androidx_appcompat"} constraintlayout = {group = "androidx.constraintlayout", name = "constraintlayout", version.ref = "constraintlayout"} javax_annotation_api = {group = "javax.annotation", name = "javax.annotation-api", version.ref = "javax_annotation"} androidx_lifecycle_viewmodel_ktx = {group = "androidx.lifecycle", name = "lifecycle-viewmodel-ktx", version.ref = "androidx_lifecycle"} androidx_privacysandbox_tools = {group = "androidx.privacysandbox.tools", name = "tools-core", version.ref = "androidx_privacysandbox_tools"} firebase_storage_ktx = {group = "com.google.firebase", name = "firebase-storage-ktx", version.ref = "firebase_storage_ktx"} play_services_identity = {group = "com.google.android.gms", name = "play-services-identity", version.ref = "play_services_identity"} junit = {group = "junit", name = "junit", version.ref = "junit"} androidx_test_ext_junit = {group = "androidx.test.ext", name = "junit", version.ref = "androidx_test_ext_junit"} androidx_fragment_ktx = {group = "androidx.fragment", name = "fragment-ktx", version.ref = "androidx_fragment_ktx"} androidx_hilt_compiler = {group = "androidx.hilt", name = "hilt-compiler", version.ref = "androidx_hilt_compiler"} androidx_activity_ktx = {group = "androidx.activity", name = "activity-ktx", version.ref = "androidx_activity_ktx"} androidx_lifecycle_runtime_ktx = {group = "androidx.lifecycle", name = "lifecycle-runtime-ktx", version.ref = "androidx_lifecycle"} androidx_lifecycle_livedata_ktx = {group = "androidx.lifecycle", name = "lifecycle-livedata-ktx", version.ref = "androidx_lifecycle"} androidx_lifecycle_runtime_compose = {group = "androidx.lifecycle", name = "lifecycle-runtime-compose", version.ref = "androidx_lifecycle"} androidx_lifecycle_viewmodel_savedstate = {group = "androidx.lifecycle", name = "lifecycle-viewmodel-savedstate", version.ref = "androidx_lifecycle"} glide_compose = {group = "com.github.bumptech.glide", name = "compose", version.ref = "glide_compose"} retrofit = {group = "com.squareup.retrofit2", name = "retrofit", version.ref = "retrofit"} converter_gson = {group = "com.squareup.retrofit2", name = "converter-gson", version.ref = "retrofit"} okhttp3 = {group = "com.squareup.okhttp3", name = "okhttp", version.ref = "okhttp3"} kotlinx_coroutines = {group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-core", version.ref = "kotlinx_coroutines"} firebase_bom = {group = "com.google.firebase", name = "firebase-bom", version.ref = "firebase_bom"} play_services_places = {group = "com.google.android.libraries.places", name = "places", version.ref = "play_services_places"} maps_compose = {group = "com.google.maps.android", name = "maps-compose", version.ref = "maps_compose"} androidx_multidex = {group = "androidx.multidex", name = "multidex", version.ref = "androidx_multidex"} androidx_compose_material3 = {group = "androidx.compose.material3", name = "material3", version.ref = "androidx_compose_material3"} stripe_android = {group = "com.stripe", name = "stripe-android", version.ref = "stripe_android"} stripe_java = {group = "com.stripe", name = "stripe-java", version.ref = "stripe_java"} ui-test-junit4 = { module = "androidx.compose.ui:ui-test-junit4" } volley = {group = "com.android.volley", name = "volley", version.ref = "volley"} compose_ui = {group = "androidx.compose.ui", name = "ui", version.ref = "compose_version"} compose_foundation = {group = "androidx.compose.foundation", name = "foundation", version.ref = "compose_version"} compose_material = {group = "androidx.compose.material", name = "material", version.ref = "compose_version"} compose_runtime = {group = "androidx.compose.runtime", name = "runtime", version.ref = "compose_version"} compose_animation = {group = "androidx.compose.animation", name = "animation", version.ref = "compose_version"} compose_ui_test = {group = "androidx.compose.ui", name = "ui-test-junit4", version.ref = "compose_version"} androidx_activity = {group = "androidx.activity", name = "activity", version.ref = "androidx_activity"} androidx_savedstate = {group = "androidx.savedstate", name = "savedstate", version.ref = "androidx_savedstate"} [plugins] android_gradle = {id = "com.android.application", version.ref = "android_gradle_plugin_version"} google_gms = {id = "com.google.gms.google-services", version.ref = "google_services_gms"} dagger_hilt_android = {id = "com.google.dagger.hilt.android", n version.ref = "dagger_hilt_android"} kotlin_compose = {id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin_compose"} ksp_devtools = {id = "com.google.devtools.ksp", version.ref = "ksp_version"}enter code here App Build.gradle import org.jetbrains.kotlin.gradle.dsl.JvmTarget import org.jetbrains.kotlin.gradle.dsl.KotlinVersion import java.util.Properties import java.io.FileInputStream plugins { alias(libs.plugins.android.gradle) alias(libs.plugins.dagger.hilt.android) alias(libs.plugins.google.gms) alias(libs.plugins.kotlin.compose) alias(libs.plugins.ksp.devtools) } android { namespace = "com.tritongames.shoppingwishlist" compileSdk = 36 defaultConfig { applicationId = "com.tritongames.shoppingwishlist" minSdk = 26 targetSdk = 36 versionCode = 1 versionName = "1.0" multiDexEnabled = true testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner" // 1. Load the properties safely val secretsFile = rootProject.file("local.properties") val secrets = Properties() if (secretsFile.exists()) { secretsFile.inputStream().use { secrets.load(it) } } // Use the key from secrets.properties, or a fallback if missing val mapsApiKey = secrets.getProperty("GOOGLE_MAPS_API_KEY") ?: "" manifestPlaceholders["GOOGLE_MAPS_API_KEY"] = mapsApiKey } buildFeatures { viewBinding = true compose = true buildConfig = true } configurations { implementation { // In Kotlin, modules are strings and must be in quotes exclude(group = "com.google.protobuf", module = "protobuf-java") } } buildTypes { getByName("release") { isMinifyEnabled = false isDebuggable = true // Warning: Keeping this 'true' means Google Play may reject it proguardFiles( getDefaultProguardFile("proguard-android- optimize.txt"), "proguard-rules.pro" ) } getByName("debug") { isDebuggable = true isJniDebuggable = true enableUnitTestCoverage = false enableAndroidTestCoverage = false } // Creating a custom build type named "staging" or similar // instead of naming it "debuggable" to avoid property conflicts register("staging") { initWith(getByName("debug")) // You can override specific debug settings here isJniDebuggable = true } } compileOptions { sourceCompatibility = JavaVersion.VERSION_21 targetCompatibility = JavaVersion.VERSION_21 } kotlin { compilerOptions { jvmTarget = JvmTarget.fromTarget("21") } } hilt { enableAggregatingTask = true } configurations.configureEach { exclude(group = "com.intellij", module = "annotations") } dependencies { implementation(libs.androidx.activity) implementation(libs.androidx.activity.ktx) implementation(libs.androidx.appcompat) implementation(libs.androidx.savedstate) implementation(libs.androidx.activity.compose) implementation(libs.androidx.core) implementation(libs.androidx.compose.material3) implementation(libs.androidx.fragment.ktx) implementation(libs.androidx.lifecycle.viewmodel.savedstate) implementation(libs.androidx.lifecycle.viewmodel.compose) implementation(libs.androidx.lifecycle.livedata.ktx) implementation(libs.androidx.lifecycle.runtime.ktx) implementation(libs.androidx.lifecycle.viewmodel.ktx) implementation(libs.androidx.multidex) androidTestImplementation(libs.androidx.test.ext.junit) implementation(libs.constraintlayout) implementation (platform(libs.firebase.bom)) implementation(libs.firebase.storage.ktx) implementation(libs.glide.compose) implementation(libs.hilt.android) ksp(libs.hilt.compiler) testImplementation(libs.junit) implementation(libs.kotlinx.coroutines) implementation(libs.maps.compose) implementation(libs.okhttp3) implementation(libs.play.services.identity) implementation(libs.play.services.places) implementation(libs.retrofit) implementation(libs.converter.gson) implementation(libs.stripe.android) implementation(libs.stripe.java) implementation(libs.volley) implementation(libs.javax.annotation.api) implementation(libs.compose.ui) implementation(libs.compose.foundation) implementation(libs.compose.material) implementation(libs.compose.runtime) implementation(libs.compose.animation) implementation(libs.compose.ui.test) implementation(libs.androidx.compose.material3) implementation(libs.androidx.material3) implementation(libs.androidx.ui) implementation(libs.ui.test.junit4) implementation(libs.androidx.ui.test.junit4) implementation(libs.androidx.ui.test.manifest) implementation(libs.androidx.ui.tooling) implementation(libs.androidx.ui.tooling.preview) implementation(libs.firebase.auth) implementation(libs.firebase.firestore) implementation(libs.androidx.privacysandbox.tools) implementation(libs.androidx.hilt.compiler) implementation(libs.androidx.lifecycle.runtime.compose) } secrets { // To add your Maps API key to this project: // 1. If the secrets.properties file does not exist, create it in the same folder as the local.properties file. // 2. Add this line, where YOUR_API_KEY is your API key: // MAPS_API_KEY=YOUR_API_KEY propertiesFileName = "local.properties" // A properties file containing default secret values. This file can be // checked in version control. defaultPropertiesFileName = "local.defaults.properties" } tasks.register("checkMySecret") { // 1. Load properties (Logic happens during configuration) val properties = Properties() val secretsFile = project.rootProject.file("secrets.properties") if (secretsFile.exists()) { secretsFile.inputStream().use { properties.load(it) } } val apiKey = properties.getProperty("MAPS_API_KEY") // 2. The actual task execution logic doLast { println("--- SECRET CHECK ---") if (apiKey != null) { println("✅ Key found: $apiKey") // Using Kotlin string interpolation } else { println("❌ Key NOT found. Check your secrets.properties file.") } println("--------------------") } } } Root Build.gradle plugins { alias(libs.plugins.google.gms) apply false alias(libs.plugins.dagger.hilt.android) apply false alias(libs.plugins.kotlin.compose) apply false alias(libs.plugins.ksp.devtools) apply false } Gradle Wrapper properties #Thu Jan 22 12:20:35 PST 2026 distributionBase=GRADLE_USER_HOME distributionPath=wrapper/dists distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.1-bin.zip networkTimeout=10000 validateDistributionUrl=true zipStoreBase=GRADLE_USER_HOME zipStorePath=wrapper/dists Setting Gradle pluginManagement { repositories { google() mavenCentral() gradlePluginPortal() } } dependencyResolutionManagement { repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS) repositories { google() mavenCentral() } } rootProject.name = "ShoppingWishList" include ':app'